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Re: 01 sierra 1500 5.3 PO 122 TPS sw A low input
Posted to Technical Discussion Forum on 10/31/2017 2 Replies

Hi John

Did you correct the P0122 with TPS replacement? Before replacing the MAP,check for a restriction in the exhaust. Check the minimum TPS voltage its a little low at .5 V. The MAP/TPS may share both ref voltage and signal return(ground). Login to read more.

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